30540425 has 24 divisors (see below), whose sum is σ = 39497472. Its totient is φ = 23400000.

The previous prime is 30540421. The next prime is 30540463. The reversal of 30540425 is 52404503.

It is not a de Polignac number, because 30540425 - 2² = 30540421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30540425.

It is not an unprimeable number, because it can be changed into a prime (30540421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121550 + ... + 121800.

It is an arithmetic number, because the mean of its divisors is an integer number (1645728).

Almost surely, 2^30540425 is an apocalyptic number.

It is an amenable number.

30540425 is a deficient number, since it is larger than the sum of its proper divisors (8957047).

30540425 is a wasteful number, since it uses less digits than its factorization.

30540425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 30540425 is about 5526.3392042110. The cubic root of 30540425 is about 312.5779645473.

Adding to 30540425 its reverse (52404503), we get a palindrome (82944928).

The spelling of 30540425 in words is "thirty million, five hundred forty thousand, four hundred twenty-five".